Tire.



A. W; TORKINGTON.

TIRE.

APPLICATION FILED JUNE 20,1913- Patented Apr. 17,1917.

r she rarer oration ALFRED WILLIAM TORKINGTON, 03: LONDON, ENGLAND.

TIRE.

i,222,eee.

Specificationof Letters Patent.

Patented Apr. 11'? 1191?.

Application filed June 20, .1913. Serial No. 774,869.

To all whom it may camera:

Be it known that I, ALFRED WILLIAM Tonn- INGTON, a citizen of GreatBritain, residing -metallic reinforcing material is employed incombination with rubber to prevent inter aha punctures, cutting of thet1res by sharp stones and other objects encountered on road surfaces andside slipping or skidding, and also to increase the durability of thetire or cover. Examples of such reinforced tires or tire covers are setforth in the application of Alfred Edmund Wale, which has. been seriallynumbered 607772.

The invention comprises arrangements of metallic reinforcement in therubber or like material of the tire or tire cover inwhich the componenthelices are disposed at an inclination to the true radial position withrespect to the finished article. This has the efi'ect of increasing theflexibility of the reinforced material and also increases the powers ofresisting punctures and may facilitate manufacture.

On the drawing:

The figure is a cross sectional view of a tread showing the preferredarrangement of the reinforcement in which the strips are bodilyinclined.

In accordance with m invention I use interwoven helical wire abric incombination with rubber. I cut the fabric into strips and when a numberof these strips are assembled or a long strip is mounted or incorporatedin-edgewise condition as part of a tire or tire cover the componenthelices will be disposed at an inclination to the true radial position.I may obtain this edect b mounting the strips themselves at any suitableinclination in forming the tireor tire cover The figure shows the stripsarranged longitudinally of the tire in two parallel series and someinclined one way and the others oppositely toward the central plane ofthe tire.

It will be understood that to obtain an efficient reinforcement of therubber it is desirable that the rubber should be pressed or otherwisecaused to enter all the interstices of the fabric, and while I do notlimit myself to any particular way of obtaining the combination of thewireland rubber to obtain a satisfactory result, I believe this may bestbe done by filling a sheet of the reinforcing material with rubber underpressure before cutting it into the strips or lengths for forming thetire; that is in the manner set forth in the application of AlfredEdmund Wale which has been serially numbered 607772.

It should be understood that to obtain the best effect from theinvention using interwoven helical wire material spring steel wireshould be employed.

In my invention the angle of inclination of the helices may be suited tothe particular requirements in use and can readily be varied by varyingthe inclination of the strips themselves when mounting them in a tire ortire cover.

What I claim then is:

A tread for a tire or tire cover comprising a body of flexible resilientmaterial with metallic reinforcement therein, said metallicreinforcement comprising strips of interlaced wire helices, said helicesbeing flexible laterally and compressible axially, said strips beingarranged in two circumferential series, and the strips in each seriesbeing arranged edgewise and side by side in parallel relation, thestrips in one series being inclined upwardly and inwardly toward thecentral plane of the tread and the strips in ALFRED WILLIAMTllRKllIG'IDlh Witnesses:

I-I. Lancmn, Gmnenon E. Downnn.

